Use "sqlite_master" rather than "sqlite_schema" for compatibility with SQLite < 3.33.0

Author: JanJakes

tests/WP_SQLite_Driver_Translation_Tests.php

@@ -1939,7 +1939,7 @@ private function assertQuery( $expected, string $query ): void {
 			array_filter(
 				$executed_queries,
 				function ( $query ) {
-					return "SELECT 1 FROM sqlite_temp_schema WHERE type = 'table' AND name = ?" !== $query;
+					return "SELECT 1 FROM sqlite_temp_master WHERE type = 'table' AND name = ?" !== $query;
 				}
 			)
 		);

wp-includes/sqlite-ast/class-wp-sqlite-information-schema-builder.php

@@ -378,10 +378,10 @@ public function get_table_name( bool $table_is_temporary, string $information_sc
 	public function temporary_table_exists( string $table_name ): bool {
 		/*
 		 * We could search in the "{$this->temporary_table_prefix}tables" table,
-		 * but it may not exist yet, so using "sqlite_temp_schema" is simpler.
+		 * but it may not exist yet, so using "sqlite_temp_master" is simpler.
 		 */
 		$stmt = $this->connection->query(
-			"SELECT 1 FROM sqlite_temp_schema WHERE type = 'table' AND name = ?",
+			"SELECT 1 FROM sqlite_temp_master WHERE type = 'table' AND name = ?",
 			array( $table_name )
 		);
 		return $stmt->fetchColumn() === '1';

wp-includes/sqlite-ast/class-wp-sqlite-information-schema-reconstructor.php

@@ -127,7 +127,7 @@ private function get_sqlite_table_names(): array {
 		return $this->driver->execute_sqlite_query(
 			"
 				SELECT name
-				FROM sqlite_schema
+				FROM sqlite_master
 				WHERE type = 'table'
 				AND name != ?
 				AND name NOT LIKE ? ESCAPE '\'
@@ -367,7 +367,7 @@ private function generate_column_definition( string $table_name, array $column_i
 		$is_auto_increment = false;
 		if ( '0' !== $column_info['pk'] ) {
 			$is_auto_increment = $this->driver->execute_sqlite_query(
-				'SELECT 1 FROM sqlite_schema WHERE tbl_name = ? AND sql LIKE ?',
+				'SELECT 1 FROM sqlite_master WHERE tbl_name = ? AND sql LIKE ?',
 				array( $table_name, '%AUTOINCREMENT%' )
 			)->fetchColumn();